Revert "OLMIS-4249, add demo data service account."
Revert "OLMIS-4249, add demo data service account."

This reverts commit cabc9f2cb0766c56a7dfec8a1aa8b21632d81a21.

OpenLMIS/openlmis-referencedata,OpenLMIS/openlmis-referencedata,OpenLMIS/openlmis-referencedata,OpenLMIS/openlmis-referencedata